Item-based collaborative filtering recommendation algorithms.. WWW, 285-295, 2001. [PUMA: seminar2006 recommender ir collaborative filtering lecture] URL
Item-based collaborative filtering recommendation algorithms.. WWW, 285-295, 2001. [PUMA: information ir retrieval advanced lecture] URL
Item-based collaborative filtering recommendation algorithms. Proceedings of the 10th International WWW Conference, 285-295, 2001. [PUMA: recommender collaborative filtering] URL